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Date:	Thu, 30 Aug 2001 08:24:58 +1000 (EST)
From:	=?iso-8859-1?q?Danny=20Smith?= <danny_r_smith_2001 AT yahoo DOT co DOT nz>
Subject:	Calling opendir, readdir for empty removeable drive pops up SEM dialog
To:	Cygwin <cygwin AT sources DOT redhat DOT com>
MIME-Version:	1.0

 
 Calling opendir or readdir on empty floppy or CD drive causes the SEM
dialog box (No disk in drive..Abort/Retry/Ignore) to pop up.  Trying to
get the Ignore button to work eventually cause seg fault.

A workaround is to bracket calls to these functions with
SetErrorMode((SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX)); /*
disable SEM */
and

SetErrorMode(0) /*  enable */

This effectively presses Ignore for you without the SEM dialog: 
GetLastError returns 21 (ERROR_NOT_READY) which is what the Ignore
reponse should do.


Danny

http://travel.yahoo.com.au - Yahoo! Travel
- Got Itchy feet? Get inspired!

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